Fan



FIG. 1 is a perspective view of a fan showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof, the opposite side being a mirror image thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing of an electrical cord in FIGS. 1 and 3-6 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a fan, as shown and described. 